From the depths of a Mississippi riverbed, scientists unearthed a giant vertebra that may belong to the largest mosasaur ever ...

Fossils of a giant killer mosasaur have been discovered, along with the fossilized remains of its prey. At the end of the Cretaceous period, 66 million years ago, sea monsters really existed. While ...

Equipped with powerful jaws and finely serrated teeth, paleontologists say the 43-foot-long prehistoric marine reptile deserves the name Tylosaurus rex. After remeasuring dozens of mosasaur specimens ...

A giant vertebrate discovered in the state of Mississippi in the United States may belong to the largest mosasaur ever found in the state. This discovery intrigues scientists due to its exceptional ...